<template>
  <div>
    <NavType />
    <div class="main">
      <div class="py-container">
        <!--bread-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <a>全部结果</a>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!-- 把参数放到面包屑中，但有可能是没有这个参数的，用v-if判断，有才展示 -->
            <li class="with-x" v-if="searchParams.categoryName">{{searchParams.categoryName}}<i @click="deleteCategoryName">×</i></li>
            <li class="with-x" v-if="searchParams.keyword">{{searchParams.keyword}}<i @click="deleteKeyword">×</i></li>
            <li class="with-x" v-if="searchParams.trademark">{{searchParams.trademark.split(":")[1]}}<i @click="deleteTrademark">×</i></li>
            <!-- v-for遍历生成商品属性的tag，并把index传给x的点击事件 -->
            <li class="with-x"  v-for="(item,index) in searchParams.props" :key="index">{{item.split(":")[1]}}<i @click="deleteProps(index)">×</i></li>

          </ul>
        </div>

        <!--selector-->
        <!-- 第一个自定义事件用来收集trade的值，第二个用来收集prop的值 -->
        <SearchSelector @searchForTrademark="searchForTrademark" @searchForProps="searchForProps"/>

        <!--details-->
        <div class="details clearfix">
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <li @click="changeOrder('1')" :class="{active:searchParams.order.split(':')[0]==='1'}">
                  <a >综合
                    <!-- v-show是字体图标在选择这个排序方式后在展示 -->
                    <!-- 动态class，是根据升序还是降序决定展示哪一个字体图标 -->
                    <i v-show="searchParams.order.split(':')[0]==='1'" class="iconfont" :class="{
                        'icon-up':searchParams.order.split(':')[1]==='asc',
                        'icon-down':searchParams.order.split(':')[1]==='desc'
                    
                    }"></i>
                  </a>
                </li>
                <li  @click="changeOrder('2')" :class="{active:searchParams.order.split(':')[0]==='2'}">
                  <a >价格
                    <i v-show="searchParams.order.split(':')[0]==='2'" class="iconfont"
                    :class="{
                        'icon-up':searchParams.order.split(':')[1]==='asc',
                        'icon-down':searchParams.order.split(':')[1]==='desc'
                    }"
                    ></i>
                  </a>
                </li>
              </ul>
            </div>
          </div>
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5" v-for="goods in goodsList" :key="goods.id">
                <div class="list-wrap">
                  <div class="p-img">
                    <!-- 点击商品时，跳转到详情页，使用声明式路由导航即可 -->
                    <router-link :to="`/detail/${goods.id}`"><img :src="goods.defaultImg" /></router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>{{goods.price}}</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <a  title="促销信息，下单即赠送三个月CIBN视频会员卡！【小米电视新品4A 58 火爆预约中】">{{goods.title}}</a>
                  </div>
                  <div class="commit">
                    <i class="command">已有<span>2000</span>人评价</i>
                  </div>
                  <div class="operate">
                    <a href="success-cart.html"  class="sui-btn btn-bordered btn-danger">加入购物车</a>
                    <a href="javascript:void(0);" class="sui-btn btn-bordered">收藏</a>
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <div class="fr page">
            <Pagenation 
            :totalPages="searchList.totalPages" 
            :pageNo="searchParams.pageNo"
            :continuePage="5"
            :total ="searchList.total"
            @newPageNo="newPageNo"
            />
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import { mapActions, mapGetters, mapState } from 'vuex'
  import SearchSelector from './SearchSelector/SearchSelector'
  export default {
    name: 'Search',
    data(){
      return{
      //定义要获取search数据的post请求的参数
        searchParams:{
            category1Id:"",
            category2Id:"",
            category3Id:"",
            categoryName: "",
            keyword: "",
            order: "1:desc",
            pageNo: 1,
            pageSize: 10,
            props: [],
            trademark: "",
      }
    }
    },
    methods:{
      ...mapActions("search",["getSearchList"]),
      //封装一个方法，获取此时跳转到search页面的params参数和query参数
      combineSearchParams(){
          const{category1Id,category2Id,category3Id,categoryName}=this.$route.query
          const {keyword} = this.$route.params
          this.searchParams.categoryName = categoryName
          this.searchParams.keyword = keyword
            if(category1Id){
              this.searchParams.category1Id = category1Id
            }else if(category2Id){
              this.searchParams.category2Id = category2Id
            }else if(category3Id){
              this.searchParams.category3Id = category3Id
            }
      },
      //点击面包屑的x清空对应的searchparams参数，并重新发请求
      //1.点击三级列表的x
      deleteCategoryName(){
          this.searchParams.categoryName = ""
          this.searchParams.category1Id = ""
          this.searchParams.category2Id = ""
          this.searchParams.category3Id = ""
          this.getSearchList(this.searchParams)
          //除了清空data中对应的参数，还需要清掉路由地址，重新进行编程式路由导航
      //清除地址栏中的categoryName等query数据 我们要留下params参数
       this.$router.replace({
              name:"search",
              params:this.$route.params   
          })
        
      },
      //2.点击搜索的x
      deleteKeyword(){
        this.searchParams.keyword =""
        // console.log(this.$route.params)
        // this.$route.params = ""
        this.getSearchList(this.searchParams)
     
     //清除地址栏中的params数据 我们要留下query参数
        this.$router.replace({
              name:"search",
              query:this.$route.query   
          })
        //还要清空input框中输入的值
        this.$bus.$emit("deleteKeyword")
      },
      //3.点击选择品牌图片的x
      deleteTrademark(){
        this.searchParams.trademark =""
        //回到第一页
        this.searchParams.pageNo = 1
        
        this.getSearchList(this.searchParams)
      },
      //4.点击选择商品属性的x
      deleteProps(index){
        //点击时，把对应下标的属性删掉
        this.searchParams.props.splice(index,1)
        //回到第一页
        this.searchParams.pageNo = 1

        this.getSearchList(this.searchParams)
        
      },
      //5.点击排序方式,如果当前点的和上次点的是同一个排序方式，则把升序和降序取反，否则就默认升序

    changeOrder(type){
      const oldOrder = this.searchParams.order.split(":")
      let newOrder = ""
      //先判断当前点击的是否是当前的排序方式
      if( oldOrder[0]=== type ){
          newOrder = type + ':' + (oldOrder[1]==='desc'?'asc':'desc')
      }else{
      //点击的排序类型发生了变化 直接使用默认排序方式
          newOrder = type + ':' + 'asc'
      }
      //改变数据
      this.searchParams.order = newOrder
        this.searchParams.pageNo = 1

      //重新发送请求
        this.getSearchList(this.searchParams)
    },

  
      //获取子组件传进来的品牌参数
      searchForTrademark(value){
       //接受到品牌点击的传值之后,修改params并重新发送请求
          this.searchParams.trademark = value
        //回到第一页
        this.searchParams.pageNo = 1

          //重新发送请求
           this.getSearchList(this.searchParams)
      },
      //获取子组件传进来的商品属性
      searchForProps(prop){
      //避免重复点击同一个属性，同一个就不要重复插入到数组中
          if(this.searchParams.props.includes(prop)) return

      //如果插入的数据之前有相同的id,我们则替换(先删掉 再push)
        this.searchParams.props = this.searchParams.props.filter((item)=>{
            return item.split(":")[0]!==prop.split(":")[0]
        })
          //把prop插入到searchParams的props数组中
          this.searchParams.props.push(prop)
        //回到第一页
        this.searchParams.pageNo = 1

          //重新发送请求
         this.getSearchList(this.searchParams)

          // console.log(this.searchParams);
      },
      //获取页码组件传的当前页码
      newPageNo(page){
          this.searchParams.pageNo = page
          //重新发送请求
         this.getSearchList(this.searchParams)
      
      }
},

computed:{
      ...mapGetters("search",["goodsList"]),
      //获取整个后端响应过来的数据，为了获得页码的数据
      ...mapState("search",["searchList"])
    },
components: {
      SearchSelector
    },
watch:{
    //监听$route的改变，初始化时，立即监听，且改变时先调用设置post参数的方法，再调用获取search数据的方法，把参数传进去
      $route:{
        immediate:true,
        handler(){
        this.combineSearchParams()
        this.searchParams.pageNo = 1

        this.getSearchList(this.searchParams)

        }
      }
    }
  }
</script>

<style lang="less" scoped>
  .main {
    margin: 10px 0;

    .py-container {
      width: 1200px;
      margin: 0 auto;

      .bread {
        margin-bottom: 5px;
        overflow: hidden;

        .sui-breadcrumb {
          padding: 3px 15px;
          margin: 0;
          font-weight: 400;
          border-radius: 3px;
          float: left;

          li {
            display: inline-block;
            line-height: 18px;

            a {
              color: #666;
              text-decoration: none;

              &:hover {
                color: #4cb9fc;
              }
            }
          }
        }

        .sui-tag {
          margin-top: -5px;
          list-style: none;
          font-size: 0;
          line-height: 0;
          padding: 5px 0 0;
          margin-bottom: 18px;
          float: left;

          .with-x {
            font-size: 12px;
            margin: 0 5px 5px 0;
            display: inline-block;
            overflow: hidden;
            color: #000;
            background: #f7f7f7;
            padding: 0 7px;
            height: 20px;
            line-height: 20px;
            border: 1px solid #dedede;
            white-space: nowrap;
            transition: color 400ms;
            cursor: pointer;

            i {
              margin-left: 10px;
              cursor: pointer;
              font: 400 14px tahoma;
              display: inline-block;
              height: 100%;
              vertical-align: middle;
            }

            &:hover {
              color: #28a3ef;
            }
          }
        }
      }

      .details {
        margin-bottom: 5px;

        .sui-navbar {
          overflow: visible;
          margin-bottom: 0;

          .filter {
            min-height: 40px;
            padding-right: 20px;
            background: #fbfbfb;
            border: 1px solid #e2e2e2;
            padding-left: 0;
            border-radius: 0;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

            .sui-nav {
              position: relative;
              left: 0;
              display: block;
              float: left;
              margin: 0 10px 0 0;

              li {
                float: left;
                line-height: 18px;

                a {
                  display: block;
                  cursor: pointer;
                  padding: 11px 15px;
                  color: #777;
                  text-decoration: none;
                }

                &.active {
                  a {
                    background: #e1251b;
                    color: #fff;
                  }
                }
              }
            }
          }
        }

        .goods-list {
          margin: 20px 0;

          ul {
            display: flex;
            flex-wrap: wrap;

            li {
              height: 100%;
              width: 20%;
              margin-top: 10px;
              line-height: 28px;

              .list-wrap {
                .p-img {
                  padding-left: 15px;
                  width: 215px;
                  height: 255px;

                  a {
                    color: #666;

                    img {
                      max-width: 100%;
                      height: auto;
                      vertical-align: middle;
                    }
                  }
                }

                .price {
                  padding-left: 15px;
                  font-size: 18px;
                  color: #c81623;

                  strong {
                    font-weight: 700;

                    i {
                      margin-left: 5px;
                    }
                  }
                }

                .attr {
                  padding-left: 15px;
                  width: 85%;
                  overflow: hidden;
                  margin-bottom: 8px;
                  min-height: 38px;
                  cursor: pointer;
                  line-height: 1.8;
                  display: -webkit-box;
                  -webkit-box-orient: vertical;
                  -webkit-line-clamp: 2;

                  a {
                    color: #333;
                    text-decoration: none;
                  }
                }

                .commit {
                  padding-left: 15px;
                  height: 22px;
                  font-size: 13px;
                  color: #a7a7a7;

                  span {
                    font-weight: 700;
                    color: #646fb0;
                  }
                }

                .operate {
                  padding: 12px 15px;

                  .sui-btn {
                    display: inline-block;
                    padding: 2px 14px;
                    box-sizing: border-box;
                    margin-bottom: 0;
                    font-size: 12px;
                    line-height: 18px;
                    text-align: center;
                    vertical-align: middle;
                    cursor: pointer;
                    border-radius: 0;
                    background-color: transparent;
                    margin-right: 15px;
                  }

                  .btn-bordered {
                    min-width: 85px;
                    background-color: transparent;
                    border: 1px solid #8c8c8c;
                    color: #8c8c8c;

                    &:hover {
                      border: 1px solid #666;
                      color: #fff !important;
                      background-color: #666;
                      text-decoration: none;
                    }
                  }

                  .btn-danger {
                    border: 1px solid #e1251b;
                    color: #e1251b;

                    &:hover {
                      border: 1px solid #e1251b;
                      background-color: #e1251b;
                      color: white !important;
                      text-decoration: none;
                    }
                  }
                }
              }
            }
          }
        }

        .page {
          width: 733px;
          height: 66px;
          overflow: hidden;
          float: right;

          .sui-pagination {
            margin: 18px 0;

            ul {
              margin-left: 0;
              margin-bottom: 0;
              vertical-align: middle;
              width: 490px;
              float: left;

              li {
                line-height: 18px;
                display: inline-block;

                a {
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  border: 1px solid #e0e9ee;
                  margin-left: -1px;
                  font-size: 14px;
                  padding: 9px 18px;
                  color: #333;
                }

                &.active {
                  a {
                    background-color: #fff;
                    color: #e1251b;
                    border-color: #fff;
                    cursor: default;
                  }
                }

                &.prev {
                  a {
                    background-color: #fafafa;
                  }
                }

                &.disabled {
                  a {
                    color: #999;
                    cursor: default;
                  }
                }

                &.dotted {
                  span {
                    margin-left: -1px;
                    position: relative;
                    float: left;
                    line-height: 18px;
                    text-decoration: none;
                    background-color: #fff;
                    font-size: 14px;
                    border: 0;
                    padding: 9px 18px;
                    color: #333;
                  }
                }

                &.next {
                  a {
                    background-color: #fafafa;
                  }
                }
              }
            }

            div {
              color: #333;
              font-size: 14px;
              float: right;
              width: 241px;
            }
          }
        }
      }
    }
  }
</style>